iCooler x4 Cooling Technology

iCooler x4 features a high performance dual slot cooler. It comes with four 6mm copper heatpipes which transfer heat effectively from the GPU to the internal fins around the central fan. Thanks to the elegant design and smoothness of iCooler fan shroud, massive amount of cool air is drawn from the central cooler to cool down the internal fins and heatpipes directly.

Massive amount of air is drawn from the central cooler to cool down the fins and heatpipes inside

To provide the ultimate heat conductivity larger surface area, iCooler x4 features four 6mm copper heatpipes which extend directly from the powerful 4890 GPU core. Heat from the 4890 GPU can rapidly transfer through heatpipes to fins that extend beyond the cooler. The optimized iCooler fan shroud design allows air flow to pass in and out and removes heat effectively. Together with the VRM heatsinks, iCooler x4 provides a great cooling platform for HD 4890.

iCooler x4 excels in noise management and is 10dB quieter than reference cooler

The ATI Radeon HD 4800 Series GPUs deliver a cinematic gaming experience with unprecedented performance. The powerful new TeraScale graphics will propel you deep into your gameplay with seamless frame rates and high resolutions. Enhanced anti-aliasing (AA) and anisotropic filtering create striking graphics with unparalleled realism so you can max out the settings of the most demanding next-generation games or revitalize your favorite titles. Play today while preparing for tomorrow with tessellation, support for DirectX® 10.1 and scalable ATI CrossFireXTM technology.

ATI AvivoTM HD Technology

ATI AvivoTM HD is the advanced image and video processing and display technology found in ATI RadeonTM HD GPUs and ATI TheaterTM video capture processors. Specifically designed for HDTV and HD video enthusiasts, ATI Avivo HD provides brilliant colors, sharp images, smooth playback of Blu-rayTM* and HD video content, HDMI with built-in multi-channel digital audio, and on some GPUs, Unified Video Decoding (UVD). UVD is designed to enable a cool and quiet media PC with low CPU power requirements and playback of HD 1080p content. HD Monitor is required for full 1080p enjoyment.

HDMI Video and Audio

A system with an ATI RadeonTM HD 4800 Series graphics card can help enhance the HD entertainment experience by providing a seamless connection to an HDTV or home theater system. With built-in 7.1 surround sound audio (AC3 / DTS ), the new GPUs and graphics cards support single cable connection directly to a compatible HDTV, projector or receiver. This single cable carries both the HD video and 8 channel audio for a clean, high definition connection. It will be equipped with an HDMI connector.These options give consumers more options and flexibility when connecting their PCs to monitors or home theaters for maximum enjoyment of HD content. The new GPU also supports xvYCC color which can display a wider range of color when connected to capable HDTVs.

Microsoft® DirectX® 10.1 support

ATI RadeonTM HD 4800 series GPUs offer full support for the new DirectX® 10 and DirectX® 10.1 API (Application Program Interface) from Microsoft; ready to meet the demanding needs of new, next generation games. DirectX 10 is the first totally new DirectX in the last 4 years and brings important graphics innovations that can be used by game developers for the next generation of games. DirectX 10 introduces crisp, never-beforeseen detail-rich images, visual effects and game dynamics capable of accurately simulating the real world. No matter which ATI RadeonTM HD 4800 Series GPU you choose, you can be assured that games will look as good as the developer intended!

ATI CrossFireXTM Technology

ATI CrossFireXTM multi-GPU technology takes your gaming experience to the next level with superb scalability, performance and compatibility. The technology combines the awe-inspiring capabilities of multiple ATI RadeonTM graphics cards and an ATI CrossFireX ready motherboard to meet the hard-core demands of your alternate reality. New ATI RadeonTM HD graphics cards are designed with an internal ATI CrossFireTM Bridge Interconnect system to simplify installation.

Microsoft® Windows Vista®

ATI RadeonTM HD 4800 series graphics cards provide support for the Microsoft® Windows Vista® operating system and take advantage of the Windows AeroTM graphical interface. You will be amazed by the dazzling 3D visual effects and have peace of mind that the ATI CatalystTM software and drivers are designed and thoroughly tested to ensure full compatibility and stability to help keep you up and running. All these new technologies and features make the ATI Radeon HD 4800 series of GPUs the ideal solution for ultimate HD gaming and HD video entertainment with the Windows Vista OS

February 10th, 2011 at 08:07 pm By Rendhy

Wow, performance is yours...!!
I had this graphic adapter, it's very-very performace of high end graphic card and so amazing!
Cause,
If You see the price 4890 as same as of 9800 GTX by nvidia
But, 4890 have a 1.4 Teraflops / 4.500 Gigaflops better than GTX 280 by nvidia and the price half of GTX 280...
So, absolutely choose 4890 for your PC...!!

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HIS has won over 1700 awards with AMD graphic solutions from major media worldwide.

" With the HD 4890 iCooler unit I expect to see some more significant overclocks as this GPU cooler is much more aggressive. Our suspicions were accurate as you can see. We got a nearly 14% increase on the core." - Overclocker Cafe Ediotr's Choice

" Looking in at the side of the card you can see a little better how the iCooler X4 is attached to the card itself. During our testing the card was total quiet with the sound of our hard drive cancelling out any sound the cooler might have made......Would we recommend this card to anyone, absolutely if you are a gamer you can plan on having hours and hours of fun playing games like you have never seen them before. " - Hi-Tech Reviews Editor's Choice

" Across the board we can see that the HIS HD 4890 iCooler x4 is not only able to beat out the GTX 260, but the more expensive GTX 275 and GTX 285 as well......Noise levels at load are the best on the HIS at load when compared to the other cards here (GTX 285/275/265). " - Tweaktown Must Have / Best Features Award

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